Warp stop-motion.



J. F. DUSTIN WARP STOP MOTION. APPLIGIATION FILED TEB. 24, 1913.

Patented Sept. 1, 1914.

2 SHEETS-SHEBT 1.

Inventqr. John F.Dustm. bywm l M A J. F. DUSTIN. WARP STOP MOTION. APPLICATION rum) FEB. 24, 1913.

1 1 09,21 2. Patented Sept. 1, 191 4.

2 SHEETS SHEET 2,

fi s es- Inventor. vMeM/{WM/ a 5 John RDusm. e A Mr y gfl 15 GEN WAR.

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detector drops it will not be retained on the top of the projection but will slide down one of the sides thereof into the space be tween the adjacent projections. The projections 10 on the member 9 are each provided with a detector-flexing nose 14 which is situated above the line of the shoulders 12 on the member 8 and with an inclined face 15 beneath the nose. The u per side-of each of the projections 10 is also either ointed or rounded so as to make it impossi le that a detector shall remain on top of the pro jection when it falls. The detectors 5 are so constructed that the depth of the solidportion 16 above the upper end of the feelor receiving slot 7 is somewhat greater than the distance between the nose 14 and the top edge 17 of the feeler members, so

that when any detector falls, as shown by the detector 5 in Fig. 5, a portion of this solid portion 16 will come opposite the nose 14 on the adjacent projection 10.

In the operation of the device the feeler member 8 is reciprocating continuously while the loom is running, said reciprocations carrying it from its central position shown in Fig. 5 to the position shown in Fig. 6 on either side of said central position, said reciprocations being of a. length equal to the distance between adjacent projections. It will be noted in this connection hat the projections on each of the meinoeis are spaced the same distance apart. .lVhen any detector drops because of the breakage, undue slackness, exhaustion, or any other fault in the corresponding warp thread, said fallen detector will drop into the space between the adjacent projections because of the rounded or pointed shape of the top of the projections, as seen by the detector 5' in Fig. 5. During the movement of the feeler unember subsequent to the time when the detector has fallen, the detector-flexing nose 14 of one of the projections will engage the solid part of the detector and the top edge of the 'slot Tin the detector will come into engagement with the detectorarresting shoulder 12. Since the shoulder 12 and the nose 14 act on the detector in different horizontal planes, it will follow that the continued relative movement of the fecler members will bend the portion 16 of the detector over into the position shown in Fig. 6 until said portion is confined between t. 'o inclined faces 15 and 13. which faces are parallel to each other. This bending of the upper portion of the detector will flex the whole detector. as shown in Fig. 6, and the lower end of the detector will e forced laterally against the adjacent detectors, thus pushing them to one side and opening up a space in the sheet of warp threads. 'hen the detector is finally brought into the positions shown in Fig. 6, further movement of the feeler member 8 is prevented. and the stopping mechanism then comes into play to stop the loom. This manner of flexing a fallen detector has the advantage that said detector opens up a considerable gap in the sheet of warp threads which gives a clear indication to the operator where the broken warp thread is located.

In Figs. 8, 9 and 10 I have shown a con struction which is similar to that above described except that the feeler members are located below the warp threads. In this case the feeler-receiving slot 7 is located in the bottom of the detector, while the wa thread-receiving opening 6' is located in t e upper side of the detector, each detector having a threading opening 19 to permit the warp thread to be entered into its slot. In this case the detector-flexing noses and shoulders of the feeler members act on the solid portion 16 of the detector and the detector is flexed both above and below this portion, as seen in Fig. 9, thus providing for displacing the inoperative detectors on both sides of the fallen detector.

While any suitable means may be used for giving reciprocating movement to the feeler member 8 without departing from the invention, I have found that the mechanism shown in Figs. 1 and 2 is a satisfactory one.

21 designates a rock shaft journaled in suitable bearings 29 on the loom frame. This rock shaft has fast thereon an arm 20 which is pivotally connected to the feeler member 8. Said shaft also has thereon an arm 22 which is ivotally connected to a collar 23 that is yieldingly connected to an actuating rod 24, said rod 24 bein connected to any suitable moving part 0 the loom by which it may be given a proper up-anddown reciprocating movement. The connection between the collar 23 and the actuating rod 24 is rovided for by two springs 25 situated eit er side of the collar 23 and encircling the rod 24 and engaging collars 26 fast on the rod 24. The up-and-down movement of the rod 24 is, therefore, communicated to the feeler member 8 through the springs 26 and rock shaft 21. The rock shaft 21 is also provided with an arm 27 having a pin or projection 30 extending laterally therefrom. This projection has ongagement with a cam surface 23 carried by the end of a lever 31 that is pivoted on the loom frame at 32. The lever 31 is connected by a link 33 with one end of a guard mem her 3i that is pivoted at its other end to the front of the loom frame. as shown at 35. The rocking movement of the rock shaft 21 operates through the projection 30 and cam. surface '28 to cause a rocking movement of the lever 31 and a consequent rising and Falling movement of the guard member 3%.. The lay 35 of the loom is provided with a dagger or finger it? which normally rests on the guard member 37 is a, lmacipoii lever pivoeti to the 106m frame at and adapted to engage' the usual shipper .iever l-zzibclvofi lever '3'? engages a knock-tiff slide m?) which is mounted. for sliding movemiit' A111 firiger 41 adapted to be engaged by iiim dagger 01" finger 36 on the iay. The projection 30 movs in the are (if a airole having the axis of die 'Simft' 21 its center; and, therefore, as the arm 27 inocias to eithei side of the sent-ml pnsiti-fin show?! in Fig. 3, 31 .vili be burned thereby to elevate the are in the central pesitien shew-n in fuli lines 3, the guard 34 iowared so that the dagger 36 is ina pnsitimi to engage the finger 41 of tna knockoff slide, The part; are so timed filia the guarai. finger is raised each time that iZ-hfi lay beats up so mug the feeler member 8 is permitted 0 we i538 i111! movement, am, tii refora, 1

is heiil in in. wrath-"e positiofi .0 J {4Q},

fihe feeier manner M mil}: mr max /Md, i

. .ticm e fine proj'scgziou 41 and thus Oper- -ats the knack-git" lever to sit-0p the 200m. When feelar member is thus arrested the swings allow the movement 0% the acnuzitor 11d 2% withcui breakage 2f the parts.

Having fziilv descxiinrqi my invent 0:1,wl1at X claim I w mi i gain-e to by ien: Pa,

1. In a mu Ell, mri's 'iinat'lon with a plum mil flexible slot-ted detectors 11- 2111.5 {Lillild by the Warp iiireiicis, a; fen-Ear members extending Elam sio'bs a)?" said detectors, and

45 Ling mid mcmlmrs a relative of their 3 1 th,

F A r J ecmons the (i1 mmnbui w g inizmom said 2. 1n :1 v with a pin detectors nuz'mnily tl'nremls, ()l: twc ea throng iii- .3. a

The lower endbf meihe 00m frame 1 and which is 'zisvidacl" as shown by dotted lines, the lever guard finger 34;. When, however, the parts above lateral ale tec'tor-fiekiifig nsle situated undar said shouldm'ysaid imse Having its faae inclined.

5- In a warpwp' ir- 'P 'ir'i, the combination with a plurality of ares-menu flexible sl'otfi-ad defiebt'or's nermaily sustained by line wag: t'n'reads, of mo ielm' members eXien-iiin 5hienglg3 fife liits of iiiiiii fle testeis, an zne'a'ns for giving said mambers '21 relative mei'e'meilfi in H10 dirstion of ilhfiil ie 'tn, F sne ai said members having pmjiactio' s thereezi, sac-l1 presez'ating a aietcaor-z-uresting hoiiltf-e-r at its base nmi an inclined suriace above said shoulder, and time other iemner having projections, each presenting a, and detector-flexing nose situated alumesaid SilGLli'iGl', Bitid nose having an in. er face inclined sub tantiaily parallel t0 midi iiiciineai wrface.

In a warp stop motion, the C(jl'jibilliliT-ifill with a plurality of rcsiiiwzt ilexibie slotted date-stays nornmii'y sustained by ili Warn iiuasads, 0i aws ice-kir- HifilfiiJQliS extending vii? slugs sai i, detacims, and

ving said mbmx: a felzaiiva the Qi'rectimi 0f their i-engtli, i. memii s liming pijgctiam movenwnt mm of iliereon, (sash D Lietcctnr-amxbu nciimed Sill.

goth t ulcier at i above Saki a it; he (the? membm imming pm} and pach presenting an boih skies thsreo l 1'. sral detecfior-iicxing mesa situated above sii-sulciei'.

5, In a was step motion, the combinafiii'm with a piuralnjy of resilient fiexibie slotted deiecters normally susmined by 511*: war threads, 01? two feels? members extending tlirough the slots of said detectors, and means far giving said members a reint-ivs movmnent in the direction of their length, cne of said members having projections thereon, each presenting 011 both sides thereof a detector-arresting shoulder at its base and an inclined. surface. above said shoulder, and the other member having pmjactimir each prsscming on both sicies there)? 1. iaterai detector-flexing nose situated abow the shoulder, the under face of each nose hur an inclined surf-(ice parallel to the iris mmmi inclined surface.

6. in z; warp stop motion, the combinafiic-n with two fveler members, of means to g? said members a relative movement in New direction of their length, a plurality (if 2 silient flexible. detectors embracing said feelei' member: "ml normally sustained by the warp th reac aid members having PTO jcctions, the prop inns of one member v sonting inclined surfaces and these- Ti ether member presenting (ietecteiz'fiexing ieseby a Snare- Q 7. In a warp stop motion, thecombination said detector is eugaged between the nose with a plurality of resilient flexible slotted and the inclined surface and thereby flexed detectors normally sustained by the warp out of its normal position. i threads, of two feeler. extending In testimony whereof, I have signed my 5 through the slots of saiddeteetors, one-memname to this specification, in the presence of 1 her having detecto -nrresting shouldersand two subscribing witnesses. inclined surfaces above the shoulders; and JOHN F. DUSTIN. the other member having detector-flexing Witnesses: noses situated above the shoulders whereby Lotus CvSMITH, 10 when any detecto drops owing to; fault Tnoms J. Dntmuom 

